FIFA World Cup - got time to blog?

I haven't been able to find a time to blog - all due to FIFA World Cup. Below are my thoughts of the current state of the competition:

1. Most of the seeded teams which have played produced a sub-standard performance.
2. Many of the teams which were expected to lose to the seeded teams fought in a spirited manner and played extremely well.

After 8 matches, the underdogs were obviously well prepared. They did their homework well. They played well as a team. Many of the players were very good at ball control.

So, what happened to the seeded teams? Over confidence? Ego - thinking that they're star players which make them unable to play as a team? Poorly prepared? Or all the above?